335 lines
10 KiB
Go
Executable File
335 lines
10 KiB
Go
Executable File
package ginx_test
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// 可运行示例：gin 接入 responsex 的完整用法。
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// 每个示例都用 httptest 真实走一遍路由，输出即真实响应体。
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"net/http/httptest"
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"os"
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"testing"
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"code.yun.ink/pkg/responsex"
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ginx "code.yun.ink/pkg/responsex/ginx"
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"github.com/gin-gonic/gin"
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"github.com/yuninks/errorx"
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"github.com/yuninks/langx"
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)
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// ---------- 业务错误码：项目里通常在 errors 包声明一次 ----------
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var (
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// 第一种写法：text 直接给默认语言文案
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ErrSignInvalid = errorx.NewCode("ex_sign_invalid", 41001, "签名校验失败")
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// 第二种写法：文案由 langx 的语言表提供（推荐，便于集中维护多语言）
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ErrStockNotEnough = errorx.NewCode("ex_stock_not_enough", 50001, "库存不足")
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)
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// TestMain 里注册一次语言表，等价于项目启动时执行 langx.RegisterDir / RegisterEmbed
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func TestMain(m *testing.M) {
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langx.RegisterTrans("zh", map[string]string{
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"ex_stock_not_enough": "库存不足",
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"ex_sign_invalid": "签名校验失败",
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})
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langx.RegisterTrans("en", map[string]string{
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"ex_stock_not_enough": "out of stock",
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"ex_sign_invalid": "invalid signature",
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})
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// 示例演示用：把默认 logger 换成静默实现，避免响应日志混入示例输出。
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// 真实项目应接入自己的日志组件，例如：
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// responsex.InitOptions(responsex.SetLogger(loggerx.New(...)))
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responsex.InitOptions(responsex.SetLogger(silentLogger{}))
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gin.SetMode(gin.TestMode)
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os.Exit(m.Run())
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}
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// silentLogger 实现 responsex.Logger，什么都不做
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type silentLogger struct{}
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func (silentLogger) Info(ctx context.Context, args ...interface{}) {}
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func (silentLogger) Infof(ctx context.Context, format string, args ...interface{}) {}
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func (silentLogger) Error(ctx context.Context, args ...interface{}) {}
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func (silentLogger) Errorf(ctx context.Context, format string, args ...interface{}) {
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}
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// ---------- 辅助 ----------
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func newExampleEngine() *gin.Engine {
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r := gin.New()
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r.Use(ginx.Middleware())
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return r
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}
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// do 发一次请求，返回响应记录器
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func do(r *gin.Engine, method, path string, headers map[string]string) *httptest.ResponseRecorder {
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req := httptest.NewRequest(method, path, nil)
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for k, v := range headers {
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req.Header.Set(k, v)
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}
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w := httptest.NewRecorder()
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r.ServeHTTP(w, req)
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return w
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}
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// body 返回按 key 排序后的紧凑 JSON，便于示例输出稳定
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func body(w *httptest.ResponseRecorder) string {
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var m map[string]any
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if err := json.Unmarshal(w.Body.Bytes(), &m); err != nil {
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return w.Body.String()
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}
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return compact(m)
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}
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func compact(v any) string {
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bs, err := json.Marshal(v)
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if err != nil {
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return ""
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}
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return string(bs)
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}
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// ---------- 1. 最小可用：挂中间件 + 成功响应 ----------
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func Example() {
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r := newExampleEngine()
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r.GET("/ping", func(c *gin.Context) {
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ginx.Success(c, gin.H{"pong": true})
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})
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w := do(r, http.MethodGet, "/ping", nil)
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fmt.Println("HTTP", w.Code)
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fmt.Println(w.Body.String())
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// Output:
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// HTTP 200
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// {"code":200,"message":"请求成功","data":{"pong":true}}
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}
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// ---------- 2. Middleware：trace_id 桥接 ----------
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func ExampleMiddleware() {
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r := newExampleEngine()
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r.GET("/order", func(c *gin.Context) {
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// 业务侧照旧用 c.Set，不需要关心核心包怎么取值
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c.Set("trace_id", "trace-9f8e7d")
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ginx.Success(c, gin.H{"order_sn": "SN20240101"})
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})
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w := do(r, http.MethodGet, "/order", nil)
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fmt.Println("c.Set :", w.Body.String())
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// 没有 c.Set 时，回落到请求头 X-Request-Id
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r2 := newExampleEngine()
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r2.GET("/order", func(c *gin.Context) {
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ginx.Success(c, "ok")
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})
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w = do(r2, http.MethodGet, "/order", map[string]string{"X-Request-Id": "req-123"})
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fmt.Println("header :", w.Body.String())
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// 两者都没有 → 不出现 trace_id 字段
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w = do(r2, http.MethodGet, "/order", nil)
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fmt.Println("none :", w.Body.String())
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// Output:
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// c.Set : {"code":200,"message":"请求成功","data":{"order_sn":"SN20240101"},"trace_id":"trace-9f8e7d"}
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// header : {"code":200,"message":"请求成功","data":"ok","trace_id":"req-123"}
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// none : {"code":200,"message":"请求成功","data":"ok"}
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}
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// ---------- 3. 参数绑定失败：直接回错误 ----------
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func ExampleError() {
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r := newExampleEngine()
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r.GET("/user", func(c *gin.Context) {
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ginx.Error(c, errors.New("EOF: 请求体为空"),
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responsex.SetHttpStatusCode(http.StatusBadRequest),
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)
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})
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w := do(r, http.MethodGet, "/user", nil)
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fmt.Println("HTTP", w.Code)
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fmt.Println(w.Body.String())
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// Output:
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// HTTP 400
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// {"code":400,"message":"EOF: 请求体为空","data":""}
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}
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// ---------- 4. 业务错误码：code 与多语言文案自动带出 ----------
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func ExampleError_businessCode() {
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r := newExampleEngine()
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r.POST("/order", func(c *gin.Context) {
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// errorx 的 New(ctx) 会带上当前请求语言，Error 自动取 Code() 与译文
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ginx.Error(c, ErrStockNotEnough.New(c.Request.Context()),
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responsex.SetHttpStatusCode(http.StatusConflict))
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})
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w := do(r, http.MethodPost, "/order", nil)
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fmt.Println("zh:", w.Body.String())
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w = do(r, http.MethodPost, "/order", map[string]string{"Accept-Language": "en"})
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fmt.Println("en:", w.Body.String())
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// Output:
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// zh: {"code":50001,"message":"库存不足","data":""}
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// en: {"code":50001,"message":"out of stock","data":""}
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}
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// ---------- 5. 校验错误带上字段信息 ----------
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func ExampleErrorWithData() {
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r := newExampleEngine()
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r.POST("/register", func(c *gin.Context) {
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ginx.ErrorWithData(c, errors.New("参数校验失败"),
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gin.H{
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"fields": []string{"email", "phone"},
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"detail": "邮箱格式不正确",
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},
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responsex.SetHttpStatusCode(http.StatusUnprocessableEntity),
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)
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})
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w := do(r, http.MethodPost, "/register", nil)
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fmt.Println("HTTP", w.Code)
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fmt.Println(body(w))
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// Output:
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// HTTP 422
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// {"code":400,"data":{"detail":"邮箱格式不正确","fields":["email","phone"]},"message":"参数校验失败"}
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}
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// ---------- 6. 列表分页 ----------
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func ExampleSuccessWithPage() {
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r := newExampleEngine()
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r.GET("/users", func(c *gin.Context) {
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// Query: ?page=2&size=10
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var page, size int64 = 2, 10
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total := int64(35)
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// 1) 换算 SQL 的 offset/limit
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offset, limit := responsex.GetOffset(int(page), int(size))
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_, _ = offset, limit
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// 2) 查库（此处给假数据）
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rows := []gin.H{{"id": 11, "name": "Alice"}, {"id": 12, "name": "Bob"}}
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// 3) 输出
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ginx.SuccessWithPage(c, rows, responsex.GetPage(page, size, total))
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})
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w := do(r, http.MethodGet, "/users?page=2&size=10", nil)
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fmt.Println(w.Body.String())
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// Output:
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// {"code":200,"message":"请求成功","data":[{"id":11,"name":"Alice"},{"id":12,"name":"Bob"}],"pagination":{"page":2,"size":10,"total_page":4,"total_count":35}}
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}
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// ---------- 7. 多语言文案 + 占位符 ----------
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func ExampleFormatMessage() {
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langx.AppendTrans("zh", map[string]string{
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"ex_order_created": "订单 #sn# 创建成功，金额 #amount# 元",
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})
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langx.AppendTrans("en", map[string]string{
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"ex_order_created": "Order #sn# created, amount #amount#",
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})
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r := newExampleEngine()
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r.POST("/order", func(c *gin.Context) {
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ginx.MsgMapData(c, "ex_order_created",
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map[string]string{"sn": "SN20240101", "amount": "99.00"},
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gin.H{"order_sn": "SN20240101"},
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)
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})
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w := do(r, http.MethodPost, "/order", nil)
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fmt.Println("zh:", w.Body.String())
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w = do(r, http.MethodPost, "/order", map[string]string{"Accept-Language": "en"})
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fmt.Println("en:", w.Body.String())
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// Output:
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// zh: {"code":200,"message":"订单 SN20240101 创建成功，金额 99.00 元","data":{"order_sn":"SN20240101"}}
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// en: {"code":200,"message":"Order SN20240101 created, amount 99.00","data":{"order_sn":"SN20240101"}}
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}
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// ---------- 8. 单占位符快捷方法 ----------
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func ExampleMsgKV() {
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langx.AppendTrans("zh", map[string]string{
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"ex_welcome": "欢迎回来，#name#",
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})
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r := newExampleEngine()
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r.POST("/login", func(c *gin.Context) {
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ginx.MsgKV(c, "ex_welcome", "name", "Yun")
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})
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w := do(r, http.MethodPost, "/login", nil)
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fmt.Println(w.Body.String())
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// Output:
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// {"code":200,"message":"欢迎回来，Yun"}
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}
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// ---------- 9. 自定义响应：非标准 code / 自定义响应头 ----------
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func ExampleCustom() {
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r := newExampleEngine()
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r.POST("/pay", func(c *gin.Context) {
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ginx.Custom(c,
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responsex.SetCode(20001),
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responsex.SetMessage("支付受理中"),
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responsex.SetData(gin.H{"pay_no": "PAY20240101"}),
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responsex.SetHttpStatusCode(http.StatusAccepted),
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responsex.SetHeader("X-Pay-No", "PAY20240101"),
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)
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})
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w := do(r, http.MethodPost, "/pay", nil)
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fmt.Println("HTTP", w.Code)
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fmt.Println("X-Pay-No:", w.Header().Get("X-Pay-No"))
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fmt.Println(w.Body.String())
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// Output:
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// HTTP 202
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// X-Pay-No: PAY20240101
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// {"code":20001,"message":"支付受理中","data":{"pay_no":"PAY20240101"}}
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}
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// ---------- 10. 完整骨架：全局初始化 + 中间件 + 业务错误 + 分页 ----------
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func Example_completeServer() {
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// 1) 启动时全局初始化（一般放 main / wire）
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responsex.InitOptions(
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responsex.SetDefaultSuccessCode(0),
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responsex.SetDefaultErrorCode(-1),
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)
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defer responsex.InitOptions( // 示例里恢复，避免影响其它用例
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responsex.SetDefaultSuccessCode(200),
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responsex.SetDefaultErrorCode(400),
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)
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// 2) 路由
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r := gin.New()
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r.Use(ginx.Middleware()) // 关键：桥接 trace_id 与语言
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r.GET("/goods", func(c *gin.Context) {
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if c.Query("sign") == "" {
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ginx.Error(c, ErrSignInvalid.New(c.Request.Context()))
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return
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}
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ginx.Success(c, gin.H{"goods": []string{"apple", "pear"}})
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})
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w := do(r, http.MethodGet, "/goods", map[string]string{"X-Request-Id": "t-1"})
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fmt.Println("fail:", w.Body.String())
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w = do(r, http.MethodGet, "/goods?sign=abc", map[string]string{"X-Request-Id": "t-2"})
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fmt.Println("ok: ", w.Body.String())
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// Output:
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// fail: {"code":41001,"message":"签名校验失败","data":"","trace_id":"t-1"}
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// ok: {"code":0,"message":"请求成功","data":{"goods":["apple","pear"]},"trace_id":"t-2"}
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}
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